Home / 408,146,688,010.20-612,220,032,015.30-249,459,255,715.80

Finding the Fourth Proportional to 408,146,688,010.20, 612,220,032,015.30 and 249,459,255,715.80

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Solution

The fourth proportional to 408,146,688,010.20, 612,220,032,015.30 and 249,459,255,715.80 is: 374,188,883,573.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,146,688,010.20 : 612,220,032,015.30 = 249,459,255,715.80 : x
  2. Step 2: Convert to fraction form
    408,146,688,010.20/612,220,032,015.30 = 249,459,255,715.80/x
  3. Step 3: Cross multiply
    408,146,688,010.20x = 612,220,032,015.30 × 249,459,255,715.80
  4. Step 4: Simplify right side
    408,146,688,010.20x = 152,723,953,520,839,990,706,176
  5. Step 5: Solve for x
    x = 152,723,953,520,839,990,706,176/408,146,688,010.20
  6. Step 6: Final answer
    x = 374,188,883,573.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.